Hemstitch sewing-machine.



No. 375,600. PATENTE@ DBC. s1, 19m

wm@ MAGHHTB PPLOATION FEED 3EPT.22.1900.

4 suma-s112551 1 l z LEV ey@ 774 mf Mikal .AE ww mgm W. N. PARKBS.

H SEWING MACHEN?,

N FILED SEPT. 22.190G.

4 SHEETS-Smm SHEETS-SHEET ATENTED DEC. 3l, 1907.

W. N. PARKES.

TCH SEWNG MHNE FILED Swimz. woo.

HBMST APPLIGANOH TENTED DEG. 3l, i907.

N. LJRKBS.

ING Mz MMS? s APPLICATION FILED SEPT. Z2, 19.00.

, ont

it. Promo Specification of Letters Patent.

Patented. vDec. 31, 1907- Applieatlon led September 22. 1900. Serial No.30793' T o all whom it may concern.l

Be it vknown that l, lYrLLLiM Prmiins, a citizen oi` the United States,nid e resident of Brooklyn7 in the conntyo;F Kings and State of NewYork, have invented certain new and use'lnl Improvements in l'enistitehSewing- Machines, of which the following o specilication.

My invention relates to hem stitch or ornamentaly stitch sewingniztehines. lts rhein object is to provide o. mechanism which. will. doheinstitehing' in combination n th e consecutively forward nioveinent ofthe iieed.

In the nsnnl hein-stitch machine, :is is Well known, the feed of theWork takes place once to each third reeiproeation of the needle. ln onetype there is no 'leed of the Work diningl a depth and edge stitch,zrlter Wl ich the Work moves forward one stitch. in another type the'work inoves forward two stitches and backward one stitch, which givesen ndvaneinstitch 11o cach third rceiproee'tion ol" the needle. ln ellthe if'erieties of heinstitch sewing` nntehines known to ine the i'eedot' the work advances only on i stitch to each third reciprocntion oithe needle. in the present l'orin of my heni-stiteh sewing' nietM chinethe Work nieves 'forward nietes? each reciprorntion oi" the needlethereby gaining enormously in the product ol these nnivchines.

Re'l'erringl to the drawings, lfiggnre l represents a iront clevntionoll :i innrhine embodying' niy invention partly in section, Fig. 2 erezn vienv partly in section und Fig. CS at loot toni plan view of thesaune. Fig. #i is :i il'ziee view partly in section. Fig. 5 is n topplain view ot' the hook, hohhin-rnse and carrier. Fig'. is n. top planview on line .refr si showing?f the thread carrying; looper :1nd presserl'oot with the loopcr in its l'orwfird position, and Fig. T is ai. viewol' the seine in its initial position. Figs. S, 9 and l0 are deteils ofthe hook operating` mechanism. Fig. 11 is a dingrnnimntie upper view of:L henistitch Inzide on niy .machine` und Fig'. l2 is bottoni view ol'the sinne. Fig. 13 is e diagrainnintie view showingr the looper inengagement with the needle threads, end ifig. ll n view ol` the sinneniter the looper hns disengaged l'roni the needle threads. l5 is a`vertical sectional view showing the relzttive positions ol'v the loonerinerhnnisni und the presser tool'. view in perspective showiner thepoint of the hook entering thc loops of the needle threads.

Fig'. le is n dingrnnnnn io i i l In the drawings A represents anoverhanging anni, B the bed plete, C the needle liar -which is mount-edin a gate D, the seme being pivoted in a usuel 'manner in the face ofthe machine as shown in Fig. 4. The nee dle her is reciprocated in theusual manner from the end ot' the upper shaft F.

E is a segment lever lattached et e to shaft mounted in a. bearing onthe arm of the machine and running transversely to said erin.

e" is e link one end of which is attached to thegnte D and the other endedjustably connected to the segment lever E. The segment lever E isvibrated in. a usual manner by n switch cani., (not shown) which ismounted on the upper shaft F ofthe inechine. The niovenient given bythe. switch com ond through it to the segment lever E and troni ittoneedle loer gate D is the seme which is `given to the needle har inthe usual zig-zeg or overseaniing machine.

G is the nnder slntlt of the inschine which is operated in. the usuelnia-nner from the npl'ier shaft F. 'lo the forward end of the shaft Gattached e gear Wheel l meshing with e gear wheel 2 attached to a sheiit3 mounted on e hearing Ll. To the forward end. et the shalt 3 isattached a beveled gear 5 which meshes with the beveled geen G, which,in turn, is attached to t vertical shaft Y also nionnted in the hearing4. To the upper end of the shaft 7 is attached a diskS having e way 9formed therein. en idle disk l() hevingar ribs or feathers 1l and `l2running et right angles to earch other formed thereon is mounted on topof the disk S. The l'ezither ll extends into the Way 9 and is adapted toslide therein. On top of the idle disk l0 is mounted n disk 13 havingwey formed across its under side in which the rib or feather 12 extends.A hook 14 is attached to thenpper side of the di'sk 13 as shown in Fig.9. lt will thus be seenl from this construction, that, it the shafl't 7is rotated the hook 1l will he rotated und that, at the sonic time, thesaid hook Ywill be free to move in any direction in s. horizontal plane.

The hook lli isol' the nsnztl construction und carries the usualliohliiiifmse or holler lng' which extends from tl l5, which ceseprevented from turning hy the nsnol fork 1:)

.which engages the stop ie bobine cese and thereby prevents the sainefrein turning. A.

4 lever 16'is pivoted at 17, said -mounted on the lower shaft G.

l pivot being in vertical ahnement with the pivots of the gate D. Thesaid leverl is formed and constructed te encircle the disk 13, as shownin Figs. 3, 4, 5 and 9. To the outer end of the 'lever 16 is attached at17%k one end of' a link 18, which link at its other end is adjustablyconnected to a segment lever 19 mounted en a shaft 2O which is adaptedto turn in a bearing onthe under side of the bed plate B, the segmentlever 19 being in engagement in the usual manner with the switch cam 21,The segvment levers E and 19 are duplicates, and the switch cam 21 isthe same as the switch cam which operates the segment lever E, thelatter cam (not shown) as before mentioned. The levers E and 19 are bothoscillated in unison and to the saine extent. The lower end of theneedle bar C is adapted to carry two needles 22 and 23, `which needlesare in line '.:1 the direction in which the workmoves and are adaptedAto-present two threads to the hook 14, which hook loops the Said twoneedle .threads 22* and 23* around the bobbin which is in the bobbincase 15. The gears 1 and 2 are proportioned relative to each other twoto ne. Through the action of these gears t e hook 14 is revolved twicewhile the needle bar is'reciprocated once. One of the objects of thisincreased speed in the hook relative to the movement of the needle is toexpedite the engagement between the hook and the needle threads.

24 'is a cylindrical presser bar through which passes a rod 25 to theupper end-of which is attached an arm 26. To the outer end of thel arm26 is attached one end of a link 27, the other end of the said linkbeing attached to an arm 28, which, in turn, is attachcd to the shaft c.Totlie lower end of the rod 25 is attached an arm 29 which cxtendsforward through an opening 30 in the shank of a presser foot 31. Theshank of the presser foot 3 1 encircles the cylindrical presser bar 24and, at its upper end is split, terminating at its forward side in earsor lugs 31* through which a screw 32* passes. This construction, as willbe seen, serves as a means for securely fastening the foot to thepresser bar 24, and permits the lower end of the rod 25 to extend intothe opening 30, thereby allowing the arm 29 to be readily attached tothe rod An auxiliary thread carrying looper 32 is mounted to turn on astud 33, and oscillate in a receptacle. 34 formed in the top of thepresser foot 3l. An eye 33* is formed in the licei ol the looper 32audsorvcs as a means for leading the thread 36;: to a cl'ianncl whichruns along thc outer periphery. of the looper and terminates in an eye35* which passes through the nose of the looperv Au opening 34* isformed through he presser foot 31 to admit of the operation ol' theneedles and the picrcers. The arm 29 is at its end 35 forked and adaptedto engage the anti-friction roller 36 mounted on a stud extendingupwardly from the shank of the looper 32. A lever 37 is pivoted at 38 toa bearing 39, which bearing, in turn, is attached to the arm A of themachine. The rear end of the lever 37 is in engagement with an eccentriccani 39* mounted on the upper shaft of the machine (shown in dottedout-4 line. Figs. l and 2) by means `of a strap 40* which at one endencircles the said cam and vextends upwardly throughan opening (notshown) in the arm A of the machine and connects as at 4() with the saidlever 37 To the forward end of the lever 37 is connected the upper endof a rod 41 which is'adapted to reciprocate in bearings 42 and 43 formedon the face plate of the machine as shown in Figs. 1 and 4. To the lowerend of the rod 41 is attached a piercer 44 which has down- Wardlyextending prongs 45 and 46. Prongs 45 and 46 are made concave-convex (asshown in Figs. 6 and 7)y and tapering to points substantially as shownin Fig. 4. The piercer 44 is reciprocated once to each reciprocation ofthe needle by means of the cam 39* and the intermediate connections. Asshown in Figs. 4 and 7, the two prongs of the piercer are arranged closebeside the needles, one behind the other in parallelism with the line ofthe needles, and said prongs coperate, respectively, with said needles,as hereafter described.

The shaft e being oscillated from lthe movement of the usual switch camwhich oscillates the segment lever E, oscillates once to tworeciprocations of the needles and, the looper` 32 heine moved by thesame switch cam, also oscilclates once to two reciprocations of theneedles. The armA 28 and the arm 26 are constructed sufficiently long totransmit su fl icient movement from the shaft e to oscillate the looper32 so tocngage and disengage from the needle threads, substantially asshown in Figs. 13 and 14.

As will be seen from Fig. 16, l have shown a diagrammatic view of thehook 14 engaging the loops of the needle threads 22* and 23* and thebobbin thread 47 extending from the delivery eye of the bobbin easel Theconlink 18 and the lever 16 are in the same vertical plane, and thus itwill be seen that if the links 1S and e are equally rociprocated theneedle bar and the hook 1,4 will he equally oscillated.

Graduated scales are formed on the face of the levers E and iii-and areplaced in the levers, as shownin Fig. 1. 'l'he object ol this scale isto facilitate the adjustment ol' the links e and 18 to a like positionon each lever relative to the pivots of the same, so as to move theneedles and the hook laterally to thc same extent, it being understood,of

saine position relative to the pivots of the v nections between the linke, the gate D, the

' eye in the end of the looper and course, that the cams which operatethese levers are so adjusted that they operate these levers in unisonwith each other.

In the present forni of my invention. I use the usual feed mechanismwhich is used in lheeler &`Wilson overseaming sewing machines, themovement being transmitted from the upper shaft F to the lower shaft Gand to the feed mechanism, the same being as in the above mentionedmachine. As is well known this feed mechanism moves the work forwardconsecutively step by step.

In the operation of the machine the end of the link e, and the end ofthe link 18 are adj usted away from the pivots of the lever E, and 19respectively, a su'llicient extent vto give the lateral movements to theneedles and hook that may be desired. If it is desired to have theneedles and hook move lat\ erally in unison with each other, then thelcams that operate said. levers are adjusted in a usual wa r to bringabout this movement.

The wor 'ng position of the needles issuch that they vibrate to and fromthe piercer 44, which as is understood has no lateral move ment, thepiercer reciprocating once to each reciprocation of the needles throughthe action of the cam 39*. The cam 39* is so constructed and placed onthe shaft F that it reciprocates the piercer just in advance of thereciprocations of theneedles, that is to say, the prongs of the saidpiercer enter the work just previous to the needles entering the same.This operation of the piercer is not essential as it can be timed toenter the work at any time relative to the entering of the needles.

The piercer reciprocates once to each reciprocation of the needles and,having two prongs which perforate the material, will always punch onehole in'advance of the needle 23. For example, when the needles descendto make the edge stitch, the piercer descends also making two depthperforations in the material. The work moves forward one stitch afterthe piercer and needles have risen from engagement with the work whilethe needles move to the left into the concave porticns of the piercerand both descend together into the perforations previously made hy thepiercer 5 the needle and piercer ascending again, the work moves forwardand thc needles descend and make an edge stitch, while the piercerdescends the prong 45 en,- tering the perforation previously made by theprong 46` the latter, at 'this point, making a new perforation inadvance of the stitching. The auxiliary looper is timed to cooperatewith the needles and piercer so that, as the latter descends the looperwill have, reached the forward position shown in Fig. 13, thus forming aloop of its thread extending from the last concatenation to and through'the back along theI body of the latter. piercer ascend, the looperassumes the reverse As the needles and extreme position shown in Fig.14, carrying its thread about the strands of needlethreads, and drawingthe same together with the requisite degree of tension. It will thus beseen that the looper thread 36* is wound around the needle threads 22*and 2.3i as illustrated in Fig. 11, 13 and 14. In these figures I haveshown the stitches somewhat separated and the looper thread somewhat tothe left of its normal position, in order that the formation of thestitches may be clearly seen.

The hook in the present form of my chine is disposed to turn in ahorizontal plane from right to left, and thebeak of the hook enters theloops of needle'threads as indicated in diagrannnatic F ig. 16. In thisfigure it is of course seen th at the loop engaging position of the hookor looper is shifted around relative to the position it is shown in theother figures, so that the'beak of the same may\be seen entering theloops of needle thread.

It is of course clear that the hein stitch made on this machine may bevaried or modified invarious ways. :In diagrammatic Fig. 11, isindicated the `way the needle threads will run on the top of thematerial when the length of each movement of the feed of the work is anextent equal to one half the distance between the needles, and in Fig.12, the way the bobbin thread will run in making such a stitch is alsoindicated., To illustrate let it be assumed that the needles haveanchored the threads 22* and 2"* in the* work at the point indicated inFig. 11, after this has been done the work is moved one half thedistance the needles are separated, and the needles are moved laterallyso they descend in about the center of the holes 50 and 51 that havebeen previously made by the piercers, the looper 32 having previouslybeen brought to the position shown in Fig. 13.Y Now when the needles arewithdrawn and the threads are drawn taut the auxiliary' thread 36* willdraw the threads 22* and 23* towards the point indicated by 52 in saidFig. 11, which point is the center of the material between the holes 50and 51. The next movement of the"`wor, and lateral movement of theneedles will bring the nee.- dle that entered at 22* to the pintwherethe thread 23* is anchored in the work, and the needle that entered at23 before when the depth stitches were being made will now enter at thepoint indicated by 53. After the needle threads have been anchored atthe points 23* and 53 the Work and needles will again be moved7 and saidneedles this time will enter holes 5] and'54, thereby straddling thepart 55 olI the material, the looper having again been moved to theposition shown in Fig. 13, in which position the looper thread 36* is.looped around the needle threads. 'lt is thus seen how thc needlethreads, and anxiliary threads run on the top of the work when theextent of the movement of the feed dog is as stated. Y

In Fig, 12 is illustrated how the bobbin thread runs on the under sideol' the work when. the mov ments of the feed, and the needles are asabove stated. In said figure, 47 indicates the bobbin thread as beforenoted. Assuming now that the work moves in the direction indicated bythe arrow in said figure, the bobbin thread will pass through the loopof the needle thread carried by needle 23 at 56, and then through theloop of the needle thread carried by the needle22 at 57. Thus from thepoints 56 to 57 runs a link 58 of bobbin thread. The next movements ofthe parts bring the needles through holes 50 and 51, and the bobbinthread through the needle loops from hole 51 to hole 50, and thus it isseen that a link 55 of bobbin thread runs from point 57 to the hole 51and from there said thread runs to hole 50, The next movement of theparts bring the needle 22 through the material at the point 56 and theneedle 23 at a point that is indicated b v 6() when the bobbin thread iscarried through the loops of needle threads as before, and a link 61 ofthe bohbin thread runs from the point to the point 56. It is thus seenthat the bobbin thread runs as shown in said Fig. 12 on the underside ofthe work when the stitches on the surface of the work are as indicatedin Fig. 1]. And it is also seen that the needle threads are drawntowards the center (if the material that is between the holes made bythe prongs of the picrccrs, and that the bobbin thread draws on the saidmaterial in the same direction so that the tend-- ency of the draw ofthe threads is to enlarge the openings or holes or keep said openingslopen. This function is accomplished in an ordinary hein stitch' machineby moving` the work forward two stitches, and thcn hack onestitch, sothat the workP only progresses once to each third reciprocation of thenecdle as before noted. While inmy machine the wortV moves forward onceto each reciprocation of the needle, and at the same time the functionsof a hen stitch machine are accomplished.

lt will be understood in the working of this machine that the extent ofthe feed is regulated so as to l'ccd the worlr forward. at each stitchthe requisite distance, this de ending upon the character of work and e'ect desircd,

In the description reference has been made to the disposition of theneedles as being in lineI in the direction in which thc work moves, andby this description l mean to be understoo lthat the needles arearranged one hchind the other in a line substantially parallel with theline of feed, whatever that mayl be, or may be caused to be, in anygiven machine, the idea being to have the line of the needles and theline of feed of the work always in substantial parallelism inhemstitching in my machine. I do not wish to be confined to thisarrangement, however, and some of my claims will not be limited thereto,as many of the features are novel irrespective 0f the arrangement of theneedles. Moreover, I do not wish to be limited. to the precise de tailsof construction which I have described, as many variations thereof, maybe made within the terms of my broad claims by any one skilled in theart. Furthermore, I have referred, in this description, to a consecutiveforward movement of the feed, and by this expression l mean to beunderstood as referring to a feed having progressive, consecutivemovements to feed the work continually in the same direction, incontradistinction to the feeds ordinarily employed in hem-stitchmachines.:

What I claimas new is :1-

1. The combination with a sewing machine having a feed mechanism and astitch forming mechanism comprising a plurality of reciprocating threadcarrying needles in line in the direction of the feed of Athe work; ofmeans for producing a relative j oggino or lateral movement between thesaid needles and the feed; a thread carrying looper suitably i mountedto be operated; and means for operating the said looper so as to loopthe looper thread around the needle threads on the side of the work intowhich the needles enter.,

' 2. A sewing machine comprising a plurality of needles arrangedsubstantially in line in the direction of the feed-movement;complemental stitch-forming mechanism; a consecutive feed and means forproducing a relative jogging movement between the needles and feed; athread-carrying looper; and means for causing the looper to coperate iwith the`needles on the side of the work into which the needles enter.

3. A sewing machine comprising a plurality of needles; complementalstitch-forming mechanism; a consecutive feed', a piercer; and means forproducing a relative jogging movement between the needles and feed; athread-carrying looper; and means for caus-- ing the looper to co cratewith the needles on the side of the wor into which the needles enter.

11. A hemstitch sewing-machine comprising a plurality of needlesarranged substantially in the line of the feed-movement; a

Jiercer coperatingwith the needles; and a looper cooperating with theneedles disposed so that its hook when engaging the-needle loops willmove substantially in the line of the feed,

5.v A hemstitchI sewing machine comprising consecutive feed a pluralityof needles A arranged substantially in the line of the feedmovement;ineansffor vibrating said needles simultaneously in the same direction;a looper eraeoo mechanism adapted to cooperate with said. needles; and apiercer cooperating with the needles to periodically penetrate the workat the ,saine point therewith.

A hemstitch sewing machine comprising a consecutive leed; aplurality oilneedles; complcmcnial stitcliiorining mechanism; a piercer f ooperatingwith the needles; and an :.iuxiliary looper coifperi'tting with theneedles` A hemstitch sewing machine comprisim;` a consecutive iced; aplurality ol' needles; conplcmcntal stiti-,h-l'orming mechanism; a'piercer cooperating with the needles; and an auxiliary loopercooperating with the needles allori? the Work-plate.

b. .l liemstitrll sewing machine comp ing consecutive leed; a pluralityof 'ne i complemcnlal stitch-leuning inet...` l and piercer having aplurality prongs cooperating with the needles; and an auxiliary loopercoopi-rzlting with the needles.

i). .i hefis tch sewing machine comprising a coiisecutive feed; apluralit'vif ol needles arranged substantially in the line of theleedniovement; mea-ns 'lor vilnating said needles simultaneously in thesame direction; a looper mechanism adapted to cooperate with saidneedles; and a piercer having a plurality of prongs cooperatingrespectively with the needles to periodically penetrate the Work at thesame point therewith.

l0. A hemstitch sewing machine comprising a consecutive 'iced aplurality ot reciprocating and viln'ating needles; means for vibratingsaid needles simultaneously in the same direction; a looper mechanismadapted to coi'lipcrate with said needles; and a piercer having aplurality ol prongs cooperating respcctivelyi` with the needles toperiodically penetrate the work at the same point therewith.

ll.. A hemstitch sewing machine comprising a consecutive leed; aplurality of vertically rcciln'ocating and. laterally vih ating needlesarranged substantially in the line of the iced-movenient; means liorvibrating said needles simultancously in the same direction; a loopcrmechanism adapted to cooperate with .said needles; and a piercercooperating u ith the needles to periodically penetrate thev worlr. atthc same point tl'icrewith.

l2. A hcmstitcl'i sewing machine comprising a consecutive lccd; aplurality of reciprocating and vibrating needles arranged sul;-stantially in thc lino ol' thc lccd-mmfcmcnt; ':omplcmcntalstitcli-l'orming mechanism; a piercer cm'ipcl'ating u'itll thc needles;and an auxiliary looper coopcrating with thcneedles.

lll. A lumstitch sewing machine comprising' a consecutive l'ced; apluralityof reciprocating and vibrating needles arranged sul)-.stantiallyY in the liuc o1' the iccd-inovement; nica-ns for vibratingsaid needles simultaneously in the same direction; a loopcr mechanismadapted to cooperate with said needles, and a piercer coniined tovertical reciprocation cooperating with the needles to 'periodicallypenetrate the Work at the saine point therewith.

le. A heinstiteh serving machine. coinprising a plurality ofreciprocating and viorating needles arranged substantially in the lineoll the feed-movement; means for vibrating said needles simultaneouslyin the same direction; piercer cooperating with the needles; andcomplemental stitch-forming mechanism including a continuously 10-tating and bodily vibrating looper.

n heinstitch sewing machine coinp'rising a plurality oi` reciprocatingand vibrating needles; a piercer cooperating with the needles;complemcntal stitch-forming mechanism. including a rotating andvibrating looper; and au auxiliary 'looper cooperating with the needles.

lo. in combination. with a sewing machine having a stitch-formingmechanism comprising a plurality of thread carrying needles line in thedirection et the feed of the work, and con'iplemental stitch-formingmechanism for engaging the needle threads heloW the work; of athread-carrying looper adapted to operate alcove the Work; and means foroperating the said looper so as to loop the looper thread around theneedle threads.

17. The comhination with a sewing Inachine having stitch-formingmechanism comprising a plurality of thread carrying verticallyreciprocating and laterally vibrating needles inline in the direction ofthe feed of the Work, athread carrying looper, located above theWork-plate and means for operating the said looper so as to loop thelooper thread around the needle threads.

1.8. The combination with a sewing machine having a stitch-formingmechanism comprising a plurality of vertically reci rocatiugthread-carrying needles adapter t0 move laterally, a thread carryinglooper adapted to operate above the Work7 and means for operating thesaid looper and for moving the aforesaid needles laterally so as toalternately loop the loe er thread around the needle threads above theWork.

if). The comhii'iation with a sewing Inachine having stitch-formingmechanism compr' g a plurality or' thread carrying verticallyreciprocating and laterally vibrating needles in linel in the directionof the lleed ol' the work, a thread carrying looper adapted to operateabove the Work, and means For operating the said looper so as to loopthe looper thread around the needle threads.

2U. in a sewing machine having a stitchlorining mechanism comprising aplurality ol' thread carryinfr needles; a thread carrying looper locatedto operate above the Work; means for actuating the aforesaid needlesmeans for oscillating the said looper in a horizontal plane, means forvibrating the aforesaid needles across the said looper so that theneedles alternately descend 1n the loop of the looper thread.

22. In a sewing machine having a stitch- -forming mechanism comprising aplurality of thread carrying needles in line in the direction of themovement of the work; a,

piercer having a plurality of prongs in line in the direction of themovement of the work; means for operating the said piercer; athreadcarrying looper; and means for operating the looper so as to loop thelooper-thread around the needle threads.

23. In a sewing machine having a plurality of reciprocating threadcarrying needles adapted to be moved laterally, a complementalstitch-forming mechanism comprising a looper adapted to be movedlaterally; means for operating the said looperpmeans for moving theneedles and the looper laterally in unison; an auxiliary looper adaptedto operate above the work; andmeans for operating the said auxiliarylooper A24.. The combination with a sewing machine having astitch-forming mechanism comprising a plurality of needles mounted inline in the direction ofthe feed of the work; means for reciprocatingand for moving the said needles laterally simultaneously in the sainedirection; a device for piercing holes in the work; means for operatingthe said device so that'it co-acts'with the needles to periodicallypenetrate the work at the same point therewith; a device for engagingthe needle-threads below the work to produce a single line .ofstitching; and means' for operating the said device.

25. A hemstitch sewing machine comprising a plurality of reciprocatingand vibrating needles; a piercer cooperating with the needles andcomplemental stitch-formingmeehanism including a fixed shaft, a singleloo )er cooperating with both needles, means etween the shaft and looperfor actuating the latter, and means for vibrating the looper relativelyto the said shaft and in unison with the vibrations of the needle.

26.k A hemsti'tch sewing machine comprising a plurality of needlesarranged substantially in the line of the feed-movement; a piercercoperating .with the needles; and complemental stitch-forming mechanismincluding a fixed shaft, a looper coperating with both needles, meansbetween the shaft and looper for actuating the latter, and vmeans svaeoofor vibrating the looper relatively to the shaft and in unison with thevibrations of the needle.

27. A hemstitch sewing machine comprising a plurality of reciprocatingand vibrating needles; a iercer coperatingvith thev needles; compemental stitch-forming mechanism including a fixed shaft, a loopercoperating with the needles, means between the shaft and loo er foractuating the latter, and means for vi rating the looper relativelyr tothe shaft and' in unison with the vibrations of the needles; and anauxiliary looper coperating with the needles.

28. A sewing machine comprising a reciprocating and vibrating needle;and complemental stitch-forming mechanism including a fixed shaft, alooper supported said shaft, means for actuating the looper, and

rocating and vibrating needle; and complemental stitch-forming mechanismincluding a fixed shaft, a looper, means between the shaft and looperfor actuatin lever having a portion which rounds the looper, and meansfor'actuating the lever to vibrate the looper bodily relatively to itsaxis and in unison with the vibrationsI of the needle.l l.

31. A sewing machine comprising a reciprocating and Vvibrating needle;and complemental stitch-forming mechanism including a fixed shaft, a looer supported thereby and having a loose sliding connection tl'ierewith,and means for'vibrating the looper relatively to the shaft and in unisonwith the vibrations of the needle.

32. A sewing machine comprising reciprocating and vibrating needles; andcomelemental stitch-forming mechanism inclut ing a fixed shaft, a disksliding thereon, a looper sliding on the disk, and means for engagingthe looper and vibrating the same relatively to the shaftand in unisonwith the vibrations cf the needle.

33. A hemstitch sewing machine comprising a plurality of reciprocatingand vibrating needles; means for vibrating said needles simultaneous] yin the saine direction complemental stitch-forming mechanism'cooperating with said needles; piercer cooperating with the needles toAperiodically'.

thelatter, a loosely surlio .penetrate the work at the same poiiittherewith; and means for actuating said iereer including a cam, areciprocating ro and means between the cam and rod for actuating thelatter.

35. The combination with a sewing machine having a stitch formingmechanism comprising a plurality of vertically reciprocating andlaterally vibrating needles in line in the direction of the movement ofthe work of means for vibrating said needles simultaneousy in the samedirection; a rod mounte to reciprocate vertically; a piercer actuatedthereby and cooperating with the needles to periodically' penetrate thework at the same point therewith; a lever; a connection between thelever and the rod; and means for oscillating the lever.

36. A hemstitcli sewing machine comprising a plurality of needlesarranged in line in the direction of feed-movement; means for vibratingsaid needles simultaneously in the same direction; complementalstitch-forming mechanism cooperating with said needles; a piercercooperating with the needles to periodically penetrate the work at thesame point therewith; a rod connected thereto; a cam; and a leverconnected to the cam and to the rod for reci rocating the latter.

3.7. The com )ination with a sewing machine having a stitch-formingmechanism comprising a plurality of vertically reci rocating andlaterally vibrating needles in -ne in the direction of the movement ofthe feed; means forvibrating said needles simultaiieousl y in the samedirection; a rod mounted in suitable bearings to reciprocate vertically;a piercer cooperating with the needles to periodically penetrate thework at the same point therewith, said piercer being attached to thelower end of the said rod; a lever;ra connection between the forward endof the levcrand the rod; a cam mounted on the upper shaft of the machineand a connection between the said cani and the lever.

38. A hcmstitch sewing machine comprising a consecutive feed; aplurality of needles arranged substantially inl the line offeedinovenient; a piercer coi'iperating With the needles; and a loopercooperating with the needles disposed so that its hook when enposed sothat its hook when engaging the needle-loops will move substantially inthe line of the feed; and an auxiliary looper cooperating with theneedles.` p

40. A lienistitch sewing machine comprising a plurality of needlesarranged substantially in the line ofthe feed-movement; a loopercooperating with the needles and disposed so that its hook when engagingthe needle loops will move substantially in the line cf the feed; and anauxiliary looper cooperating with the needles above the workplate.

41. A hemstitch sewing machine comprising a plurality of needlesarranged substantially in the line of the feed-movement; a pieeercooperating with the needles; a loo er cooperating with the needles anddisposedpso that its hook when engaging the needle-loo s will movesubstantially in the line of t e feed; and an auxiliary loopercooperatingwith the needles.

42. A sewing machine comprising a reciprocating and vibrating needle-barcarrying a plurality of needles arranged substantially in the line ofthe feed-movement; an auxiliary looper cooperating with the needles; anactuator; and means connecting the needlebar and the auxiliary looperwith the actuator for imparting vibratory movements thereto.

43. A sewing machine c( uprising a reciprocatingand vibrating needle-barcarrying a plurality of needles arranged substantially in the line ofthe feed-movement complemental stitch-forming mechanism; an auxiliarylooper cooperating with the needles; a common actuator for theneedle-bar and auxiliary looper; connections between the actuator andthe needle-bar and auxiliary looper; and means for var ing the vibratorymovemf .ts of the needlear.

44. A sewing machine comprising a plurality of vibrating andreciprocating needles arranged substantially in line in the direction ofthe feed-movement; means for vibrating said needles including arock-shaft; a looper cooperating with said needles above the work-plate;and means between the rockshaft and looper for oscillating the latter.

45. In a sewing machine having a stitchforming mechanism comprising aplurality of thread carrying needles; a comp emental stitch-formingmechanism adapted to engage tlie needle threads below the work; a

resser-bar suitably mounted; a Way formed ongitudinally through the saidpresser-bar; a rod located in the said way and adapted to lloo oscillatetherein; a presser-foot mounted on the presser-bar; a looper mounted tooscillate on the presser-foot, a connection between the 'looper and theaforesaid rod and. means for oscilla-ting the rod.

46. l A stitch-forming mechanism comprising a reciprocating needle andco''ierating looper; and means for actuating said looper including ashaft, a disk supporting the er and a connection between the disk antshaft whereby the latter may actua-te the looper bodily. Y

47. A stitch-forming mechanism comprisi g a reciprocating and Vibratingneedles and acoperating looper; means for actuating said loopercomprising a 'lXed rotating shaft, a disk supporting the looper, and asliding connection between the sh ai' t and disk where by the louper maybe actuated bodily.

0 48. A stitch-forming mechanism comprisH ameno ing a looper, anactuating shaft, a disk mounted to slide on the shaft, and a disk connected to the looper and mounted. to slide on the rst disk.

49. A hemstitch sewing machine comprisingv a reciprocating needle; areciprocating' piercer; a rotatingy looper; an auriliary oscillating'looper; and mechanism for actuating the parts including means forgiving; two

rotations to the looper to a single reciproca- 30 tion of the needle-barand a single oscillation of the auxiliary looper.

Signed at New York, in the county of' New York and Sta-te of New York,this twenty- V.first day of September, A. D. 1900.

WILLIAM N. PARKES.

Ylitnesses R. C. Resv/ELL, J. B. MoGnm.

